From: Martijn Tonies Date: February 11 2010 2:56pm Subject: Re: how things get messed up List-Archive: http://lists.mysql.com/mysql/220659 Message-Id: <013601caab2a$60f11970$6101a8c0@martijnws> MIME-Version: 1.0 Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response Content-Transfer-Encoding: 7bit Hello John, > About 5 years ago, I was asked to write a php app for my department. The > app keeps track of graduate school applicants to my department at the > university. The main data elements are the scores each professor gives to > each applicant. There are only about 400 applicants each year so even with > all the personal data, scores, transcripts, etc for each student, it's > not much. for the first 2 years, it was under a meg of data. Well, then > the selection committee asked me to add something so that if a student > e-mailed the department a document, say a paper he'd written or a photo of > himself, or whatever, it could be tacked on to the info they saw about him > while grading the applicant. > > So I said, "Well, there is only going to be maybe 10 or 20 of those a > year. And even if all 400 applicants submit a PDF of a paper they'd > written, it would be only 400 docs. 4,000 after 10 years. Yeah, lets just > create a documents table in the database and store them in mysql." > > For the first 2 years, only 2 students sent in documents to attach to > their application. I figured I'd wasted my time. Then the next year, the > graduate school changed their web application form to allow students to > upload documents. "Fine," I said, "My worst case scenario has already come > true. But, well, this is why you plan for the worst case." > > Then they started taking letters of recommendation as PDF documents. In > fact, they started requiring PDF docs. Each student has 3 to 6 letters of > recommendation. All in all, I figure we're at about 100 times as many docs > in our database as I originally expected and about 10x my worst case > scenario. > > I should either be fired or shot. Maybe fired *then* shot. Actually, its > not as bad as all that. I can pretty easily write a perl script to export > the docs to files and access them via a network mounted filesystem. After > all, saving myself 5 hours of work 5 years ago is worth what? -- maybe > 10hours today? It is amazing how often quick & dirty turns out just being > dirty in the end. Not sure what the problem is really... What are you running into? With regards, Martijn Tonies Upscene Productions http://www.upscene.com Download Database Workbench for Oracle, MS SQL Server, Sybase SQL Anywhere, MySQL, InterBase, NexusDB and Firebird! Database questions? Check the forum: http://www.databasedevelopmentforum.com